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(ICV-Poland) Impact Value: 76.37, Impact Factor: RJIF 5.69
E-ISSN: 2347-5129, P-ISSN: 2394-0506

International Journal of Fisheries and Aquatic Studies

2014, Vol. 1, Issue 5, Part D

Replacement of fish meal in cobia (Rachycentron canadum) diet with squid waste and squid waste silage


Author(s): N. Felix, S. Kalaivani, U. Bala Murugan and K. Rajaram

Abstract: The effects of squid waste and squid waste silage feeds on the growth and feed utilization in the juveniles of cobia, Rachycentron canadum were investigated. There was significant decrease in protein and increase in lipid and ash (P<0.05) in the squid waste silage than that of squid waste. Five isonitrogenous (45% protein) and isolipidic (15% lipid) experimental diets were formulated incorporating squid waste (SW) and squid waste silage (SWS) at 50 and 100% dietary protein (SW 50, SW 100, SWS 50 and SWS 100) respectively. A control feed without the incorporation of squid waste and squid waste silage was also prepared. Each diet was fed to three replicate groups of fish with an initial weight 10.71 – 11.23 g for 45 days. The fishes fed all diets had similar (P>0.05) mean weight gain (53.44-60.28g) and SGR (3.87 – 4.14%). The fishes fed control and SW 50 had similar and best FCR (1.98-1.99), PER (1.12) and mean feed intake (106.50 – 119.65 g) which differed significantly (P<0.05) from SW 100, SWS 50 and SWS 100 diets. The HSI was similar (2.00 – 2.20) in fishes fed all squid waste and squid waste silage based diets which was significantly (P<0.05) higher than the fish meal based diet (control). There was no significant difference observed in survival between treatments. The whole body composition of cobia fed the squid waste and squid waste silage diets did not show any variations in moisture, protein, lipid and ash. The present study indicated that fish meal can be replaced up to 100% by squid waste and squid waste silage based diets without any adverse effect on the growth, feed utilization and body composition of cobia.

Pages: 256-260  |  734 Views  10 Downloads

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How to cite this article:
N. Felix, S. Kalaivani, U. Bala Murugan and K. Rajaram. Replacement of fish meal in cobia (Rachycentron canadum) diet with squid waste and squid waste silage. International Journal of Fisheries and Aquatic Studies. 2014; 1(5): 256-260.
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